Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4776445 | Device for transferring the cup heap of debris onto a drift conveying means | Alfred Zitz, Heinrich Sussenbeck | 1988-10-11 |
| 4404893 | Hydraulic mine prop | Heinrich Suessenbeck, Alfred Zitz, Gottfried Siebenhofer | 1983-09-20 |
| 4263005 | Device for provisionally consolidating a gallery and suitable consolidating frame | Otto R. Schetine, Alfred Zitz, Wilhelm Althaler | 1981-04-21 |
| 4236627 | Cutting machine | Peter Kogler, Otto Schetina, Alfred Zitz | 1980-12-02 |